Pouring air

Pouring air

Assessment

Interactive Video

Science, Chemistry

11th Grade - University

Hard

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The video explains how candles burn by using oxygen and demonstrates how carbon dioxide, specifically from dry ice, can extinguish a candle. By filling an aquarium with carbon dioxide and pouring it over the candles, the denser gas displaces the oxygen, causing the candles to go out.

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2 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the significance of the tier of candles in the experiment?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe the density relationship between carbon dioxide and air as mentioned in the text.

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